Telephone receiver attachment



J. JOSINSKY TELEPHONE RECEIVER ATTACHMENT June 5, 1928.

Filed Oct. l9, 1927 I N V EN TOR. Jbim/Jbsuzs/qy,

- ATTORNEY.

Patented June 5, 1928.

JOHN JOSINSKY, OF BAYSIDE, NEW iroax.

TELEI"HONE RECEIVER ATTACHMENT.

This invention relates to anattachment for telephone receivers, and hasfor its object to provide, in a manner as hereinafter set forth, meanswhereby dissipation of the sound waves from the receiver is materiallyreduced, or in other words the sound waves are confined, therebyobtaining an unusually satisfactory receiving effect especially whenlistening in places where constant noises are created from difierentsources, or in places where noises.

Further objects of the invention are to provide, in a. manner ashereinafter set 5 forth, an attachment for the purpose-referred to whichis simple in its construction and arrangement, strong, durable, compact,thoroughly efiicient in its use, readily installed with respect tothereceiver, not marring the appearance of the latter, and comparativelyinexpensive to manufacture.

With the foregoing and other objects in view the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described, and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which fall within the scope of'the claims hereuntoappended.

In the drawings wherein like reference characters denote correspondingparts 1 throughoutthe several views Figure l is a perspective view ofthe attachment looking towards the rear end.

Figure 2 is a cross sectional view thereof on line 2 2 Figure 1.

Figure 3 is a perspective view of the attachment looking towards thefront thereof. Figure 4 is a side elevation, broken away of theattachment as applied to the receiver.

The attachment is in the form of an annulus and constructed frommaterial possessing a characteristic of suflicient resiliency tofrictionally engage with the receiver to maintain the annulus in setposition on the free end of and extended from such end of the receiver.Any suitable material can be employed for constructing the attach ment,and the material can be celluloid or thin metal, and with the body ofthe annuquietness is disturbed by elementarylus of appropriatethickness, even though it be very thin, yet will possess sufficientrigidity to prevent the collapsing thereof, or distortion when handledor placed in listening position.

The receiver comprises an annular body portion indicated generally at 1,formed of an inner coupling portion 2 and an outer sound wave confiningport-ion 3. The portion 2 conforms in contour to the outer terminalportion 4 of the receiver 5, and as shown the portion 2 is of arcuatecontour in transverse section. The portion 3 is of uniform diameterthroughout and the diameter thereof conforms to the smallest diameter ofthe portion 2. The transverse width of the portion 3 is substantiallythesame as the transverse width of the portion 2. The rear of the portion 3merges in the front of the portion 2 and the latter terminates at itsrear in an outwardly directed flange 6 of curvilinear cross section,acting as a means to facilitate the removal of the body portion 1 fromthe receiver 5 when desired.

The portion 3 at its front is a reinforcing bead 7.

The pedestal or telephone is indicated at 8 and the hook for thereceiver at 9.

When the attachment is mounted upon the receiver it prevents thedissipation of the sound waves to a material extent, or in other wordsthe sound waves are confined, thereby obtaining an unusuallysatisfactory receiving efl'ect especially in places that are noisy andthereby the attachment when used will enable one to listen in a verysatisfactory manner, and therefore it is thought the many advantages ofan attachment for telephone receivers, in accordance with thisinvention, can be readily understood, and although the preferredembodiment of the invention is as illustrated and described, yet it isto be understood that changes in the details of construction can be hadwhich will fall within the scope of the invention as claimed.

What I claim is:

An attachment for telephone receivers provided with comprising a bodyportion in the form of an annulus formed of a coupling portion forconnection with the recelver and a sound wave confining portion extendedoutwardly from the coupling portion and projecting from the receiver,said coupling portion conforming in contour to that portion of thereceiver upon which it is, mounted, said 5 sound Wave confining portionbeing of uniform diameter throughout, said coupling portion having its,rear provided with an outwardly directed annular flange curvilinear intransverse section and said sound Wave confining portion having itsfront-provided With a bead. v V

In testimony whereof, I aflix my signature hereto. 7

JOHN J OSINSKY.

